Warren is hosting a policy team trivia night fundraiser in Somerville, Ma.—the cost to attend is $20 per person or $100 for a team of five. Brown’s is a little different—he will be at Chef Michel Richard’s restaurant Central in Washington, D.C. where individuals need $1,000 to attend (and $2,500 to host).

While both candidates have received lots of money from outside the Bay State, when it comes to campaign contributions from lobbyists, there's no contest--Brown is raking it in.

Sen. Brown and his leadership PAC have received at least $161,000 in cash from lobbyists this cycle, according to Public Campaign Action Fund analysis of data from the Center for Responsive Politics. In comparison, Warren has received just over $30,000 from lobbyists. The events this week will no doubt increase that divide.

Brown and Warren signed a landmark outside spending agreement earlier this year that, for the most part, continues to work as intended. This story shows, though, that while the agreement is commendable, we need to do more to ensure candidates are focused on people back home and not special interest lobbyists. Warren knows that and has called for public financing of elections, more transparency in our political system, and a reversal of the Supreme Court's Citizens United decision. Brown recently voted against the DISCLOSE Act that would have shined more light on political spending and has not sponsored any public financing legislation like he did as a member of the state legislature.